调节千斤顶的英文：
adjustment jack

adjustment是什么意思：
n. 调整，调节；调解

This is the adjustment on a micrometer.
这是测微计上的调节器。

adjustment of saturation
(色)饱和度调整

He is a loss adjuster.
他是险损估价人 。

internal adjustment scope
内调式瞄准镜

idle speed adjustment
空转调整;空转速度调节

jack是什么意思：
n. 千斤顶；插座；J牌；男人
v. 用千斤顶顶起，抬起；提高，增加；提醒

Every Jack has his Jill
有情人终成眷属

Jack of all trades is of no trade
万事皆通,一无所长

Jack surrendered himself to pleasure.
杰克沉溺于欢乐之中。

Jack is a full back of the team.
杰克是球队的后卫队员。

Jack was dubbed a hero.
杰克被授予英雄称号。